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Official Site: Hasbro

My Little Pony: Equestria Girls, or simply known as Equestria Girls, is a product line of fashion doll and media franchise launched in 2013 by American toy company Hasbro, as a spin-off of the 2010 relaunch of the My Little Pony franchise and its Friendship Is Magic television series. Equestria Girls features anthropomorphized versions of My Little Pony characters from that period. It includes various doll lines, media tie-ins and licensed merchandises.

In addition to the Hasbro toys, Allspark Animation (previously credited under Hasbro Studios), a subsidiary of Hasbro, have commissioned animated production tie-ins, including four films, eight television specials and several series of animated shorts.

The Equestria Girls setting is established as a parallel counterpart to the main world of Equestria in the 2010 incarnation of My Little Pony, populated with humanoid versions of the characters from the franchise; the Hasbro website described them as "full-time students and part-time magical pony girls".

My Little Pony: Friendship Is Magic, while aimed at younger children, had gained a surprising number of older fans in their 20s and 30s, known as "bronies". Among fanworks produced by this older crowd included re-imagined art of the Friendship Is Magic cast as human equivalents. Hasbro saw this art and came up with the idea of developing the spin-off with a similar re-imagining.

The Rainbooms has not been a contender in any CBUB matches.